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上海异型钢管厂参加全国工业学大庆会议的代表,了解到目前我国还不能生产方钻杆后,回厂立即组织攻关组,决心填补这个空白,为创建十来个大庆出力。 生产高强度合金钢方钻杆至少要有300吨以上拉力的拉拔机,而该厂最大的拉拔机只有80吨。他们运用毛主席光辉的哲学思想,从两个方面入手解决矛盾。一是改革加工工艺,根据金属加热后容易变形的原理,把冷拉改为热拉,以降低变形时的抗力;二是改革模具,把
Shanghai Shaped Steel Pipe Plant participated in the National Daqing Conference on Industrial Science, understand that at present our country can not produce side drill pipe, back to the factory immediately organized research group, determined to fill this gap, to create dozens of Daqing contribute. The production of high-strength alloy steel square drill pipe at least 300 tons of tensile pull machine, and the plant’s largest drawing machine only 80 tons. They used Chairman Mao’s brilliant philosophical thinking and started to solve the contradictions in two aspects. First, the reform process, according to the principle of metal deformation is easy to heat, the cold drawn hot pull, to reduce the deformation resistance; the second is to reform the mold, the